[TestFixtureSource(nameof(FixtureArgs))]
public class TestFixtureSourceUsage(string arg1, int arg2)
{
    [Test]
    public Task Test() =>
        Verify(
            new
            {
                arg1,
                arg2
            });

    static object[] FixtureArgs =
    [
        new object[]
        {
            "Value1",
            1
        },
        new object[]
        {
            "Value2",
            2
        }
    ];
}